// Copyright 2016 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "android/emulation/DmaMap.h"

#include <unordered_map>
#include <vector>

namespace android {

typedef std::unordered_map<uint64_t, DmaBufferInfo> DmaMapState;

class TestDmaMap : public DmaMap {
public:
    TestDmaMap() : mOldDmaMap(DmaMap::set(this)), mInstalled(true) {}

    ~TestDmaMap() { release(); }

    void release() {
        if (mInstalled) {
            // NOTE: A value of nullptr for mOldDmaMap is valid.
            DmaMap::set(mOldDmaMap);
            mInstalled = false;
        }
    }

    const DmaMapState& dumpState() {
        return mDmaBuffers;
    }

    virtual void* doMap(uint64_t addr, uint64_t buffer) { return nullptr; }
    virtual void doUnmap(void* mapped, uint64_t buffer) { }

    DmaMap* mOldDmaMap = nullptr;
    bool mInstalled = false;
};

} // namespace android
